Fibres and yarns
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14 Terms
1
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What is the basic building block of fabric and yarns?
Fibres
2
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What are the three types of fibres?
Natural, synthetic and cellulosic
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What are some examples of natural fibres?
Cotton, linen, silk, and wool
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What are some examples of synthetic fibres?
Polyester, nylon, acrylic, aramid, and spandex
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What are some examples of cellulosic fibres?
Rayon, viscose, and acetate
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What are cellulosic fibres made of?
Vegetable and plant matter
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If cellulosic fibres are made from a natural thing, why are they not in the natural catagory?
Cellulosic fibres start as natural and become synthetic through chemical changes
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How are yarns made?
By twisting yarns together
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What is an example of tangled fibres?
A cotton ball is a ball of tangled cotton fibres
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How long are cotton fibres?
6-20 cm
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What twist is it when you twist tangled fibres to the right?
The Z twist
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What twist is it when you twist tangled fibres to the left?
The S twist
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What is a ply yarn?
Two or more single yarns twisted together
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What is a cord?
Two ply yarns twisted together